3 SYRIAN PRESIDENT BASHAR AL-ASSAD SAYS HIS GOVERNMENT IS áNOT BEHIND A CHEMICAL WEAPONS ATTACK LAST WEEK - THAT LEFT HUNDREDS OF SYRIANS DEAD. BUT THE U-S GOVERNMENT BELIEVES OTHERWISE - AND A DEBATE OVER WHAT TO DO áNEXT IS UNDERWAY. CHANNEL FOUR ACTION NEWS WASHINGTON D-C BUREAU REPORTER HALLIE JACKSON JOINS US LIVE WITH THE STORY. 3 3 3 INVESTIGATION AT THE SITE OF THE TODAY - BUT AT THIS POINT, FROM THE PERSPECTIVE - IT'S TOO LITTLE, TOO SUPERS:PKG. SCRIPT) TOP LAWMAKERS ON FOREIGN RELATIONS COMMITTEES WANT HAPPEN IN SYRIA - áSOON. GOVERNMENT INSISTS IT IS áNOT RESPONSIBLE FOR A WEAPON ATTACK - THAT KILLED PEOPLE IN A SUBURB OF DAMASCUS LAST WEEK. BELIEVES THERE'S "VERY LITTLE DOUBT" CHEMICAL WEAPON AGAINST ITS CIVILIANS.INVESTIGATORS WILL EXAMINE THE SITE OF AND CONFIRM WHAT HAPPENED. A WHITE HOUSE PRESIDENT OBAMA HASN'T DECIDED WHAT TO DO - YET. 3 3 3 3 3 THANK YOU HALLIE.

Israeli Prime Minister Benjamin Netanyahu warned Tuesday that a proposed agreement between world powers and Iran was "a bad deal" that would not stop Tehran from getting nuclear weapons -- but would rather pave its way to getting lots of them and lea...